The next generation Diablo demo demon carbide-tipped reciprocating blades with new variable tooth design are specifically designed for maximum performance in nail-embedded wood. This high performance carbide-tipped blade delivers unmatched 20 times longer cutting life than bi-metal blades in nail-embedded wood. Reciprocating blade12 in. length6 teeth per inchUnique high performance tooth designCarbide teethFor cutting wood, wood composites and nail embedded wood